https://tcconner.com/2026/05/30/echoes-and-ghosts-somewhere-between-a-listening-room-and-a-sonar-shack/Framing the Sounden2026-05-30T15:27:44+00:00Echoes and Ghosts: Somewhere Between a Listening Room and a Sonar ShackSubmarines, Sonar Technician, ghosts in the machines